So, the problem here is actually not the breaks/replaces, but the fact that old qemu-user-static package is left available in sid/unstable archive, version 1:10.0.7+ds-0+deb13u1+b1 - the one you're reporting this bug about.
In presence of real package in the same debian archive, apt prefers real package, not the one which is being provided by another package (it first looks for real package, and looks for Provides only if no real package is found). So this only is a problem when you *explicitly* want to install qemu-user-static from sid, - and gets the conflict you're reporting. Everything is okay with the metadata of the packages. What's neede is to remove old cruft from sid archive. As a workaround, currently, please install qemu-user-binfmt instead of qemu-user-static. The latter does not exist anyway, since trixie. Thanks, /mjt
